In the entire world, Nichai (นิชัย 
, Nichai 
, Ничай 
) is a very rare epicene forename. The first name Nichai is habitual in Thailand, where it is a very rare mostly masculine, but infrequently feminine name, and India, where it is an extremely rare gender-neutral name. More prevalently, Nichai is the last name as well as the forename.